| | Akron city | 1900775 | Plymouth County 19149 | IA | Le Mars, IA 30180 | Sioux City-Le Mars,
IA-NE-SD 512 | | https://maps.google.com/?q=Akroncity+IA |
| | Brunsville city | 1908875 | Plymouth County 19149 | IA | Le Mars, IA 30180 | Sioux City-Le Mars,
IA-NE-SD 512 | | https://maps.google.com/?q=Brunsvillecity+IA |
| | Craig city | 1916950 | Plymouth County 19149 | IA | Le Mars, IA 30180 | Sioux City-Le Mars,
IA-NE-SD 512 | | https://maps.google.com/?q=Craigcity+IA |
| | Hinton city | 1936480 | Plymouth County 19149 | IA | Le Mars, IA 30180 | Sioux City-Le Mars,
IA-NE-SD 512 | | https://maps.google.com/?q=Hintoncity+IA |
| | Kingsley city | 1941385 | Plymouth County 19149 | IA | Le Mars, IA 30180 | Sioux City-Le Mars,
IA-NE-SD 512 | | https://maps.google.com/?q=Kingsleycity+IA |
| | Le Mars city | 1944400 | Plymouth County 19149 | IA | Le Mars, IA 30180 | Sioux City-Le Mars,
IA-NE-SD 512 | Y | https://maps.google.com/?q=LeMarscity+IA |
| | Merrill city | 1951375 | Plymouth County 19149 | IA | Le Mars, IA 30180 | Sioux City-Le Mars,
IA-NE-SD 512 | | https://maps.google.com/?q=Merrillcity+IA |
| | Oyens city | 1960780 | Plymouth County 19149 | IA | Le Mars, IA 30180 | Sioux City-Le Mars,
IA-NE-SD 512 | | https://maps.google.com/?q=Oyenscity+IA |
| | Remsen city | 1966405 | Plymouth County 19149 | IA | Le Mars, IA 30180 | Sioux City-Le Mars,
IA-NE-SD 512 | | https://maps.google.com/?q=Remsencity+IA |
| | Sioux City city (part) | 1973335 | Plymouth County 19149 | IA | Le Mars, IA 30180 | Sioux City-Le Mars,
IA-NE-SD 512 | Y | https://maps.google.com/?q=SiouxCitycity+IA |